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Type:
Question
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Resolution: Done
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Priority:
Major - P3
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Affects Version/s: None
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Component/s: None
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Students Json attached herewith has been imported into students collection, has 200 documents.
When trying to delete single array element from and array by second element (score),
shell gives message: Updated 1 existing record(s) in 1ms
But actually no change happens inside db and the array element stays there.
Below commands not working:
db.students.update(
{ '_id': 0 },
{ $pull: { scores: { type: 'homework', score: 6.67617606065462 } } },
{ multi: true }
)
db.students.update(
{ '_id': 0 },
{ $pull: { scores: { type: "homework",score:6.67617606065462} } },
{ multi: true }
)
But, below command works when trying to delete by 1st element of the array
db.students.update(
{ '_id': 0 },
{ $pull: { scores: { type: 'homework' } } },
{ multi: true }
)